Based on his comments in his online chat today Bob Smizik apparently believes the relationship between Tomlin and Rooney has hit a rough patch
In retrospect, the decision by Rooney was surprising, the breach of Steelers protocol was shocking. The Steelers usually have their ducks in a row. On this matter they did not. Unbelievable poor communications between Rooney and Tomlin. So poor, in fact, I wonder if there's not something deliberate about the way it was handled. ...
Is Art mildly upset with the head coach over something?
Bob Smizik: You would think there is something wrong in the relationship between the two men. Rooney certainly hung Tomlin out to dry with the way he handed the Arians firing.